diff --git a/content/u/advent-calendar/13/contents.lr b/content/u/advent-calendar/13/contents.lr
index 41a2730..9bbc5cc 100644
--- a/content/u/advent-calendar/13/contents.lr
+++ b/content/u/advent-calendar/13/contents.lr
@@ -71,4 +71,4 @@ shares2020@ungleich.ch or write in Matrix to @nico:ungleich.ch.
 
 You need to be over 18 years old for being our shareholder. Due to
 banking regulations in Switzerland, US citizens or parties that are
-subject to tax in the US are not eligible for being our shareholders.
+subject to tax in the US are not eligible for being our shareholder.